On Tue, 23 Feb 2016, Anil Nair wrote: > Hi, > > I am getting following error while connecting my pendrive, This would be easier to follow without all the extra debugging information clogging up the log. > [ 3793.220454] scsi 5:0:0:0: Direct-Access Kingston DataTraveler > 2.0 1.00 PQ: 0 ANSI: 4 > [ 3793.220543] device: 'target5:0:0': device_add ... > [ 3922.968041] usb 1-3: reset high-speed USB device number 5 using ehci-pci > [ 3923.100302] usb 1-3: device firmware changed That's the problem right there. Notice that there's a two-minute delay after the device is plugged in before the error occurs. What happened during that delay? > I am unable to mount it.What could be the issue? Can I recover it? More information is needed. Please capture a usbmon trace and post the result (see Documentation/usb/usbmon.txt in the kernel source for instructions). Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html